Hand setting-tool for rivets



Patented Oct. 1,1895.

(No Model.)

H. H. GUMMINGS. HAND SETTING TOOL FOR RIVETS, ne.

fi unies@ HENRY H. OUMMIN GS, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO THE REVERSIBLE RIVET COMPANY, OF PORTLAND, MAINE.

HAND STTlNG-TOOL FOR RIVETS, &.C.

SPECIFICATION forming part of Letters Patent No. 547,142, dated October 1, 1895.

Application led January 14, 1395. Seria1N0.534,932. (N0 model.)

.To @ZZ whom t may concern,.-

Be it known that I, HENRY H. CUMMINes, of Malden, county of Middlesex, State of Massachusetts, have invented an Improvement in Hand Setting-Tools for Rivets, dre., of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention relates to tools for setting rivets of various kinds, eyelets, dsc., and has for its object the production of a simple, compact, and powerful tool of the class described, wherein the power is applied to the movable member of the tool in such manner as to utilize it most advantageously, the construction and operation of the tool adapting it readily to a variety of kindred uses, such as a belt-punch or saw-set, as will be described hereinafter.

Figure 1, in side elevation and partially broken away, represents a setting-tool embodying my invention. Fig. 2 is a partial longitudinal section thereof on the line .fr az, Fig. 1, looking to the right. Fig. 3 represents in section modified forms of anvil and plunger, and Figs. 4 and 5 are similar views of yet other modified forms of anvil and plunger to be described.

Referring to Fig. 1,1 have represented the setting-tool as consisting of a rigid and preferably arched or U-shaped frame A to support the operative parts, one of the arms, as a, of the frame having an extension at right angles thereto and in the plane of the frame to form a hollow handle a', open longitudinally at its rear side for the purpose to be described. The other arm d2 of the frame is enlarged at a5 and preferably internally threaded, as at a4, Fig. 2, to form an anvil-support. The support a3 is preferably split and provided with ears am, through which a clamp-screw 5 is passed to clamp the support firmly about the anvil.

As shown in Figs. 1 and 2, the cylindrical shank of the anvil h is threaded at b to engage the threaded support a3, and the face of the anvil is suitably shaped to co-operate with the plunger in setting the rivet, in this .instance a pointed projection b2 thereon acting as a punch, and to enter the tubular portion of a riveta tudinally movable in a bearing a5 in the arm d of the frame in alignment with the anvil. In Figs. 1 and 2 the outer end of the plunger is shown as slabbed off at c and recessed adjacent thereto at c2 to receive the rivet to be set, which is inserted and held in the recess while being set. The plunger is longitudinally bored to receive a pin c3, headed at 03X and normallyprojecting into the recess c2 by means of a spring s to retain the rivet therein, the end of the plunger having a hole `c4 to (3o-operate with the punch. Toggle-arms cl and d are pivoted, respectively, to the plunger c and Within the hollow handle d at c and ax, and to each other at dx, a short link d2, pivoted to the joint of the toggle, connecting it at cl3 to a depending handle a6, Fig. 1, fulcrumed on the frame at a7. As shown in Figs. 1 and 2, the toggle-levers are eX- tended or set, forcing the plunger c toward and to co-operate with the anvil to set a rivet, separation of the handles breaking the toggle-joint and withdrawing the plunger, the open rear side of the handle a permitting the outward movement of the toggle-levers and the link d2, as shown in dotted lines, Fig. 1. By means of the toggle mechanism the plunger is positively actuated in a most powerful manner, the power being applied to the joint d of the toggle at substantially right angles thereto by drawing the handles together; and it will be observed that by pivoting the toggle to the plunger and to the handle within the recess of the handle the toggle will enter the recess in setting the tool, the handle serving as a housing for the toggle, and thus protecting the hand of the operator from injury by the toggle mechanism. A rivet is inserted in the recess c2 of the plunger and the material in which it is to be set interposed between the anvil and plunger, after which setting of the toggle mechanism moves the plunger to the anvil, punching the material and setting the rivet firmly therein.

In Fig. 3 the anvil e is transversely slotted at its inner end at c and recessed to receive a block e2, having a concaved face to receive the head of a pronged fastener, the projecting inturned ends eX of-a strap e3, passed A plunger c enters and is longi! IOO about the block in the slot e', forming a retaining device to hold the fastener-head in place, a spring s' normally holding the retaining device c3 in the position shown. The outer end of the co-operating plunger f is cupshaped,as atf, with acentral projection f2 to spread the prongs or legs of the fastener, which are thereafter upturned and clinched into the material by the depression f', the spring s permitting slight upward movement of the head-retaining device e3 at such time to release the fastener from the anvil. While the setting-tool is herein shown as adapted to set rivets or other fasteners into the material, it is equally well adapted for use as a beltpunch or saw-set, by reason of its compactness and great power, by merely substituting a suitable anvil or plunger.

In Figli the anvil g is shown as provided with a hardened fiat face g', while the plunger 7i is made as a punch, having an escape-passage h. The material is held between the anvil and plunger, and setting of the toggle will cause the plunger' to punch a hole therein, the disk cut out escaping through the opening h. The ourvtd frameA permits the hole to be punched at a considerable distance in from the edge of the belt or other article, a most convenient and valuable feature of the tool. It it is desired to use the tool as asawset, the faces m and n of the anvil m and plunger n, respectively, are shaped to clamp the body of the saw-blade while bending a tooth at an angle thereto.

From the foregoing it will be obvious that the power is applied by the operator grasping and moving the handles toward each other, the leverage of the fulcrumed handle being utilized in increasing the power, which is applied directly and substantially at right angles to the joint of the toggle.

My invention is not restricted to the precise construction and arrangement shown, as modiiioations in minor features may be made withand 'removable anvil in said support, and a fixed handle extending from its other end and provided with a longitudinal recess, open at the rear of said handle, a plunger arranged in the upper portion of said longitudinal recess in alignment with the anvil and capable of longitudinal movement therein, the toggleu lever pivoted at one end to the plunger and to the handle at its other end within said recess, and the actuator lever pivoted to the frame and connected to the joint of the toggle-lever by a link, whereby the toggle enters the recess in and is protected by the handle when the tool is actuated, substantially as described.

In testimony whereof I have signed my name to this specication in the presence of two subscribin g witnesses.

HENRY H. CUMMINGS. lVitnesses:

JOHN C. EDWARDS, AUGUSTA E. DEAN. 

